Amplifiers 

The amplifiers are available in many different types 

All voltages (AC/DC)
With or without time-functions (on/off delay 0-10 sec.)
Automatic self-adjustment and relative sensitivity
Output PNP/NPN / Relay / Relay/NPN
Number of channels: 1, 2, 3, 4, 6
Multiplex

For special types or voltages please ask